What is the difference between Sender and From in EWS?

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The Mailbox element has child elements named Sender and From. And I'm really confused about the difference between them.

This is what the documentation says about Sender:

The Sender element specifies the e-mail address of the person who sent an item

And about From:

The From element represents the address from which the message was sent

Really, it doesn't make any difference for me. The XML that I see is always the same for the both elements. So what is the real difference between these two?

asked Jan 3 at 17:01

Andrey Chernukha

13.4k1374143

Check tools.ietf.org/html/rfc4021#section-2.1.2link

– Gert Jan Kraaijeveld
Jan 4 at 15:13

Thanks a lot for your response, but I still don't understand what the actual difference is. Can you please explain it in a plain language?

– Andrey Chernukha
Jan 4 at 15:20

The difference is subtle. Sender and From are redundant in most cases. More explanation can be read here link paragraph 4.4. Bottomline: Just From is OK. But I can imagine some mailers require both fields to be defined

– Gert Jan Kraaijeveld
Jan 4 at 15:35

If you can imagine such a case could you please describe it as simply as possible as an answer to my question. I will accept and upvote your answer and you will get 25 points)))

– Andrey Chernukha
Jan 4 at 15:43

Sorry, I can not make it clearer then the RFC, I referenced before, does.

– Gert Jan Kraaijeveld
Jan 4 at 16:08

add a comment |

The Mailbox element has child elements named Sender and From. And I'm really confused about the difference between them.

This is what the documentation says about Sender:

The Sender element specifies the e-mail address of the person who sent an item

And about From:

The From element represents the address from which the message was sent

Really, it doesn't make any difference for me. The XML that I see is always the same for the both elements. So what is the real difference between these two?

asked Jan 3 at 17:01

Andrey Chernukha

13.4k1374143

Check tools.ietf.org/html/rfc4021#section-2.1.2link

– Gert Jan Kraaijeveld
Jan 4 at 15:13

Thanks a lot for your response, but I still don't understand what the actual difference is. Can you please explain it in a plain language?

– Andrey Chernukha
Jan 4 at 15:20

The difference is subtle. Sender and From are redundant in most cases. More explanation can be read here link paragraph 4.4. Bottomline: Just From is OK. But I can imagine some mailers require both fields to be defined

– Gert Jan Kraaijeveld
Jan 4 at 15:35

If you can imagine such a case could you please describe it as simply as possible as an answer to my question. I will accept and upvote your answer and you will get 25 points)))

– Andrey Chernukha
Jan 4 at 15:43

Sorry, I can not make it clearer then the RFC, I referenced before, does.

– Gert Jan Kraaijeveld
Jan 4 at 16:08

add a comment |

The Mailbox element has child elements named Sender and From. And I'm really confused about the difference between them.

This is what the documentation says about Sender:

The Sender element specifies the e-mail address of the person who sent an item

And about From:

The From element represents the address from which the message was sent

Really, it doesn't make any difference for me. The XML that I see is always the same for the both elements. So what is the real difference between these two?

asked Jan 3 at 17:01

Andrey Chernukha

13.4k1374143

The Mailbox element has child elements named Sender and From. And I'm really confused about the difference between them.

This is what the documentation says about Sender:

The Sender element specifies the e-mail address of the person who sent an item

And about From:

The From element represents the address from which the message was sent

Really, it doesn't make any difference for me. The XML that I see is always the same for the both elements. So what is the real difference between these two?

office365 exchange-server exchangewebservices

asked Jan 3 at 17:01

Andrey Chernukha

13.4k1374143

asked Jan 3 at 17:01

Andrey Chernukha

13.4k1374143

asked Jan 3 at 17:01

Andrey Chernukha

13.4k1374143

asked Jan 3 at 17:01

Andrey Chernukha

13.4k1374143

asked Jan 3 at 17:01

Andrey Chernukha

13.4k1374143

Check tools.ietf.org/html/rfc4021#section-2.1.2link

– Gert Jan Kraaijeveld
Jan 4 at 15:13

Thanks a lot for your response, but I still don't understand what the actual difference is. Can you please explain it in a plain language?

– Andrey Chernukha
Jan 4 at 15:20

The difference is subtle. Sender and From are redundant in most cases. More explanation can be read here link paragraph 4.4. Bottomline: Just From is OK. But I can imagine some mailers require both fields to be defined

– Gert Jan Kraaijeveld
Jan 4 at 15:35

If you can imagine such a case could you please describe it as simply as possible as an answer to my question. I will accept and upvote your answer and you will get 25 points)))

– Andrey Chernukha
Jan 4 at 15:43

Sorry, I can not make it clearer then the RFC, I referenced before, does.

– Gert Jan Kraaijeveld
Jan 4 at 16:08

add a comment |

Check tools.ietf.org/html/rfc4021#section-2.1.2link

– Gert Jan Kraaijeveld
Jan 4 at 15:13

Thanks a lot for your response, but I still don't understand what the actual difference is. Can you please explain it in a plain language?

– Andrey Chernukha
Jan 4 at 15:20

The difference is subtle. Sender and From are redundant in most cases. More explanation can be read here link paragraph 4.4. Bottomline: Just From is OK. But I can imagine some mailers require both fields to be defined

– Gert Jan Kraaijeveld
Jan 4 at 15:35

If you can imagine such a case could you please describe it as simply as possible as an answer to my question. I will accept and upvote your answer and you will get 25 points)))

– Andrey Chernukha
Jan 4 at 15:43

Sorry, I can not make it clearer then the RFC, I referenced before, does.

– Gert Jan Kraaijeveld
Jan 4 at 16:08

Check tools.ietf.org/html/rfc4021#section-2.1.2link

– Gert Jan Kraaijeveld
Jan 4 at 15:13

Thanks a lot for your response, but I still don't understand what the actual difference is. Can you please explain it in a plain language?

– Andrey Chernukha
Jan 4 at 15:20

The difference is subtle. Sender and From are redundant in most cases. More explanation can be read here link paragraph 4.4. Bottomline: Just From is OK. But I can imagine some mailers require both fields to be defined

– Gert Jan Kraaijeveld
Jan 4 at 15:35

If you can imagine such a case could you please describe it as simply as possible as an answer to my question. I will accept and upvote your answer and you will get 25 points)))

– Andrey Chernukha
Jan 4 at 15:43

Sorry, I can not make it clearer then the RFC, I referenced before, does.

– Gert Jan Kraaijeveld
Jan 4 at 16:08

add a comment |

1 Answer
1

active

oldest

votes

In plain English:

From is who the message is from. It is who the recipient's email client should display the message is from.

Sender is usually the same as From, unless the message was originated by somebody, or some other system than the actual From address.

Example: Gmail when it's configured for a domain not hosted by Gmail. The From would contain you@yourdomain.com, but the Sender will contain someone@gmail.com. Many mail clients will render this as someone@gmail.com on behalf of you@yourdomain.com.

From Official RFC - Registration of Mail and MIME Header Fields

2.1.2. Header Field: From



Description:  

    Mailbox of message author  

[...]  

Related information:

    Specifies the author(s) of the message; that is, the mailbox(es)

    of the person(s) or system(s) responsible for the writing of the

    message. Defined as standard by RFC 822.



2.1.3. Header Field: Sender



Description:  

    Mailbox of message sender  

[...]  

Related information:

    Specifies the mailbox of the agent responsible for the actual

    transmission of the message.  Defined as standard by RFC 822.

edited Jan 7 at 9:03

answered Jan 4 at 16:59

MadDev

788820

Thanks a lot for your response. I'm extremely sorry for asking dumb questions, but how can it be that " the message was originated by somebody, or some other system than the actual From address"? I cannot imagine that. Can you please describe a real world scenario when this might happen?

– Andrey Chernukha
Jan 5 at 14:41

No problem. I have updated my answer with an example

– MadDev
Jan 7 at 9:04

Thanks a lot!!!

– Andrey Chernukha
Jan 7 at 12:35

Another example one user sending on behalf of another user - e.g. a secretary sending on behalf of an executive.

– Dmitry Streblechenko
Jan 7 at 15:16

add a comment |

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

In plain English:

From is who the message is from. It is who the recipient's email client should display the message is from.

Sender is usually the same as From, unless the message was originated by somebody, or some other system than the actual From address.

From Official RFC - Registration of Mail and MIME Header Fields

2.1.2. Header Field: From



Description:  

    Mailbox of message author  

[...]  

Related information:

    Specifies the author(s) of the message; that is, the mailbox(es)

    of the person(s) or system(s) responsible for the writing of the

    message. Defined as standard by RFC 822.



2.1.3. Header Field: Sender



Description:  

    Mailbox of message sender  

[...]  

Related information:

    Specifies the mailbox of the agent responsible for the actual

    transmission of the message.  Defined as standard by RFC 822.

edited Jan 7 at 9:03

answered Jan 4 at 16:59

MadDev

788820

Thanks a lot for your response. I'm extremely sorry for asking dumb questions, but how can it be that " the message was originated by somebody, or some other system than the actual From address"? I cannot imagine that. Can you please describe a real world scenario when this might happen?

– Andrey Chernukha
Jan 5 at 14:41

No problem. I have updated my answer with an example

– MadDev
Jan 7 at 9:04

Thanks a lot!!!

– Andrey Chernukha
Jan 7 at 12:35

Another example one user sending on behalf of another user - e.g. a secretary sending on behalf of an executive.

– Dmitry Streblechenko
Jan 7 at 15:16

add a comment |

In plain English:

From is who the message is from. It is who the recipient's email client should display the message is from.

Sender is usually the same as From, unless the message was originated by somebody, or some other system than the actual From address.

From Official RFC - Registration of Mail and MIME Header Fields

2.1.2. Header Field: From



Description:  

    Mailbox of message author  

[...]  

Related information:

    Specifies the author(s) of the message; that is, the mailbox(es)

    of the person(s) or system(s) responsible for the writing of the

    message. Defined as standard by RFC 822.



2.1.3. Header Field: Sender



Description:  

    Mailbox of message sender  

[...]  

Related information:

    Specifies the mailbox of the agent responsible for the actual

    transmission of the message.  Defined as standard by RFC 822.

edited Jan 7 at 9:03

answered Jan 4 at 16:59

MadDev

788820

Thanks a lot for your response. I'm extremely sorry for asking dumb questions, but how can it be that " the message was originated by somebody, or some other system than the actual From address"? I cannot imagine that. Can you please describe a real world scenario when this might happen?

– Andrey Chernukha
Jan 5 at 14:41

No problem. I have updated my answer with an example

– MadDev
Jan 7 at 9:04

Thanks a lot!!!

– Andrey Chernukha
Jan 7 at 12:35

Another example one user sending on behalf of another user - e.g. a secretary sending on behalf of an executive.

– Dmitry Streblechenko
Jan 7 at 15:16

add a comment |

In plain English:

From is who the message is from. It is who the recipient's email client should display the message is from.

Sender is usually the same as From, unless the message was originated by somebody, or some other system than the actual From address.

From Official RFC - Registration of Mail and MIME Header Fields

2.1.2. Header Field: From



Description:  

    Mailbox of message author  

[...]  

Related information:

    Specifies the author(s) of the message; that is, the mailbox(es)

    of the person(s) or system(s) responsible for the writing of the

    message. Defined as standard by RFC 822.



2.1.3. Header Field: Sender



Description:  

    Mailbox of message sender  

[...]  

Related information:

    Specifies the mailbox of the agent responsible for the actual

    transmission of the message.  Defined as standard by RFC 822.

edited Jan 7 at 9:03

answered Jan 4 at 16:59

MadDev

788820

In plain English:

From is who the message is from. It is who the recipient's email client should display the message is from.

Sender is usually the same as From, unless the message was originated by somebody, or some other system than the actual From address.

From Official RFC - Registration of Mail and MIME Header Fields

2.1.2. Header Field: From



Description:  

    Mailbox of message author  

[...]  

Related information:

    Specifies the author(s) of the message; that is, the mailbox(es)

    of the person(s) or system(s) responsible for the writing of the

    message. Defined as standard by RFC 822.



2.1.3. Header Field: Sender



Description:  

    Mailbox of message sender  

[...]  

Related information:

    Specifies the mailbox of the agent responsible for the actual

    transmission of the message.  Defined as standard by RFC 822.

edited Jan 7 at 9:03

answered Jan 4 at 16:59

MadDev

788820

edited Jan 7 at 9:03

answered Jan 4 at 16:59

MadDev

788820

answered Jan 4 at 16:59

MadDev

788820

answered Jan 4 at 16:59

MadDev

788820

Thanks a lot for your response. I'm extremely sorry for asking dumb questions, but how can it be that " the message was originated by somebody, or some other system than the actual From address"? I cannot imagine that. Can you please describe a real world scenario when this might happen?

– Andrey Chernukha
Jan 5 at 14:41

No problem. I have updated my answer with an example

– MadDev
Jan 7 at 9:04

Thanks a lot!!!

– Andrey Chernukha
Jan 7 at 12:35

Another example one user sending on behalf of another user - e.g. a secretary sending on behalf of an executive.

– Dmitry Streblechenko
Jan 7 at 15:16

add a comment |

Thanks a lot for your response. I'm extremely sorry for asking dumb questions, but how can it be that " the message was originated by somebody, or some other system than the actual From address"? I cannot imagine that. Can you please describe a real world scenario when this might happen?

– Andrey Chernukha
Jan 5 at 14:41

No problem. I have updated my answer with an example

– MadDev
Jan 7 at 9:04

Thanks a lot!!!

– Andrey Chernukha
Jan 7 at 12:35

Another example one user sending on behalf of another user - e.g. a secretary sending on behalf of an executive.

– Dmitry Streblechenko
Jan 7 at 15:16

Thanks a lot for your response. I'm extremely sorry for asking dumb questions, but how can it be that " the message was originated by somebody, or some other system than the actual From address"? I cannot imagine that. Can you please describe a real world scenario when this might happen?

– Andrey Chernukha
Jan 5 at 14:41

No problem. I have updated my answer with an example

– MadDev
Jan 7 at 9:04

Thanks a lot!!!

– Andrey Chernukha
Jan 7 at 12:35

Another example one user sending on behalf of another user - e.g. a secretary sending on behalf of an executive.

– Dmitry Streblechenko
Jan 7 at 15:16

add a comment |

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